Heater.



PATBNTED JULY 26, 1904.

C. A. GRIBBS. HEATER.

APPLIUATION PILED APR. 11, 1904.

N0 MODEL.

A javi/M1034 UNTTED STATES Patented July 26, 1904.

PATENT EETCE.

HEATER.

SPECIFICATION forming part of Letters Patent No. 765,959, dated July 26,1904.

Application iled April 11, 1904. Serial No. 202,607. (No model-l To alllull/077e it Nifty concern.-

Be it known that I, CHARLES A. CRIBBs, a citizen of the United States ofAmerica, residing at Vandergrift, in the county of l/Vestmoreland andState of Pennsylvania, have invented certain new and useful Improvementsin Heaters, of which the following is a specification, reference beinghad therein to the accompanying drawings.

rIhis invention has relation to water-heaters, and has relationparticularly to apparatus for heating water to be circulated through thepipes and radiators of a house-heating plant or system; and my inventionhas for its object the provision of a heater of novel form andconstruction which will rapidly and economically heat water for thesupply of a water-heating' plant and which will maintain the water atany desired degree of heat with a comparatively small consumption offuel.

In carrying' my invention into effect I provide a heater-casing.preferably of cylindrical form, upon the top of whichI locate awatertank, and within the same a double coil of water-pipe, the twocoils being arranged one within the other and both communicating with acommon water-inlet and a common wateroutlet, the latter leading to theaforesaid tank. rIhe coils are of such size and so arranged as to leavea circular space between their convolutions. and below the coils Iarrange an annular gas-burner, which is so constructed that the flamefrom the same will be projected into the space between the two coils,whereby both coils will be heated to substantially the same degree andwith a minimum consumption of gas. The water-tank, which I arrange uponthe top of the heater, is provided with a thermometer, by means of whichthe temperature of the water within the same may be determined, andabove the tank I arrange an annular water-pipe, communicating with thetank and provided with a number of branch pipes leading to the variousradiators of the buildingto be heated.

Referring to the accompanying drawings, Figure 1 is a vertical sectionalView of a water-heater constructed according' to my invention, and Fig.2 is a transverse sectional view of the same on the line fc c of Fig. 1.

The casing of the heater (designated 1 in the drawings) is preferably ofcylindrical form, as shown, and is provided with the air-inlets 2 andwith the stovepipe 3, which leads to the chimney and serves to carryoff1 the products of combustion from the casing 1. The casing 1 ismounted on a base 4, and upon said base is mounted an annular gas-burner5, which is supported upon legs 6, the burner being provided with aninlet-pipe 7. Above the burner 7 I arrange two spiral coils of pipe 8and 9, the coils being arranged one within the other' and leaving aspace therebetween which is in vertical alinement with the holes in thegasburner 5.

The lower terminals of the coils 8 and 9 enter a union 10, which is incommunication by the pipe 11 with the heatingI system, and the upperterminals of the coils 8 and 9 enter a union 12, which communicates withatank 13, mounted upon top of the casing 1.

The outer coil 9 is supported in position within the casing 1 bybrackets 14 14, and the inner coil 8 is supported within and maintainedin proper position relatively to the coil 9 by braces 15, arranged atdiametrically opposite points.

A thermometer 16 is arranged in the top of the water-tank 13, its bulbprojecting' into the water in the tank, and upon top of the tank anannular pipe 17 is fixed, said pipe communicating with the tank by apipe 18 and being provided with branch pipes 19, which lead to theradiators throughout the building to be heated, the return-pipes fromthe radiators all leading to the inlet-pipe 11.

The arrangement of the water-tank, the water-heating coils, and theburner is such that the flames from the burner will mainly pass upwardlybetween the coils 8 and 9. A portion of the fiame will of course pass upthe outside of the outer coil 9, and all of the flame after passing thecoils and the heated products of combustion and heated air will impingeagainst the bottom of the tank 13. As

the coils 8 and 9 are preferably made of thin copper pipe, the waterwill be very rapidly heated and after having been heated will ascendinto the tank 13, where it will be maintained in a highly-heatedcondition by the IOO flames, the products of combustion, and the heat-edair, which, as before stated, impinge directly against the bottom of thetank. rlhe water-supply to the radiators will therefore be very rapidlyheated and maintained in a heated condition with a minimum consumptionof gas.

Having described my invention, I claim* In a water-heater, a easinghaving an open upper end, a water-tank mounted thereon and forming a topfor the easing, a pipe eommunieating with the tank and provided with aplurality of branches, two eoneentrieally-arranged coils of pipe in thecasing having their upper terminals discharging with the watertank andtheir lower terminals connected to a return-pipe extending through theeasing, brackets connected to the easing and outer coil for supportingthe latter, brackets connected to the outer and inner eoil forsupporting the latter, and a gas-burner arranged beneath the Coils withits discharge-orifices in line with the space between the Coils todirect a fiame in said space and against the bottom of the Water-tank,substantially as described.

ln testimony whereotl I aHiX my signature in the presence or' twowitnesses.

CHARLES A. CRIBBS.

Vitnesses:

PRESTON E. WEISTER, Trios. GRAHAM.

